The 102 Series machine heads are a triumph in engineering and styling. The housing provides a maximum bearing for worm, gear, and string post. Worm and gear are precision-cut for perfect meshing, which eliminates backlash and slippage. Countersunk tension screw permits player to regulate turning tension to any degree. Enclosed gear box with special lubricant for a lifetime of trouble-free service.

• Sealed-in, lubricated gears
• Available in standard 14:1 gear ratio and fine 18:1 (102-18) gear ratio
• 25/64” post hole
• Post length to hole: 23mm
• Overall post length: 28.2mm
• Weight per pc/per set: 1.6oz/9.6oz
• Max. string gauge: .074”
• Hardware included (bushings, washers, screws)

Drop-in replacement for:

• 102-18 Series
• 102V Series
• 103 Series
• 106 Series
• 109 Series
• 109-18 Series
• 135 Series (Top mounting hole will be visible)
• 136 Series (Top mounting hole will be visible)
• 502 Series
• 509 Series

Product Measurements

Gear Ratio: 1:14
Bushing Length: 13 mm
Knob Depth: 8 mm
Knob Width: 17 mm
Knob Length: 23.85 mm
Item Width: 42.4 mm
Item Length: 27.2 mm
Mounting Hole Diameter: 2.6 mm
String Post Diameter: 6 mm